No stories. Firing a Frommer Stop (or a Frommer Baby) is not much different from firing any .32 or .380 pocket pistol. The recoil seems to be a bit lighter than some blowback pistols, but not anything to write home about.
As you know, the Frommer Stop and Baby are long recoil pistols, the barrel and bolt recoil, locked together, until reaching the full recoil position, at which the barrel is released to go forward to extract and eject the fired case; when it reaches battery, the bolt is released to move forward and chamber the next round. In other words, just like a Browning Auto 5, except on a small scale.
Until the advent of guns like the Keltec and Ruger LCP, the Frommer Baby was (I believe) the smallest pistol ever made in .380.
Jim